人教版 七年级上 Unit 7 How much are these socks? Section A（Grammar Focus-3c）课件 (共15张PPT)

(共15张PPT)
Unit 7 How much are these socks
Section A Grammar Focus-3c
How much is the hat It’s five dollars.
How much is this T-shirt It’s seven dollars.
How much is that brown sweater It’s eight dollars.
How much are these socks They’re two dollars.
How much are those black trousers They’re nine dollars.
Grammar Focus
How much is the hat 这顶帽子多少钱
How much are those black trousers
那些黑色的裤子多少钱
询问价格常用疑问句型How much ... 意为“……多少钱 ”
其同义结构: What’s the price of ...
*这支钢笔的价格是多少
What’s the price of the pen
基数词
仔细观察例句, 体会并写出基数词的构成规律。
1. I have four pens, five pencils, six erasers
and twelve books. (1～12的基数词无规律)
2. Thirteen boys and eighteen girls are in the
classroom. (十三到十九, 七个词词尾都有teen)
3. Twenty and thirty is fifty. (从二十开始, 整十
位数二十到九十, 八个词词尾都有ty)
4. The trousers are twenty-seven dollars. (表示
几十几的数字, 两词中间加-)
1.基数词的表达法
数　字 基数词形式 例　词
0～12 各自独立 zero 0; one 1; nine 9; twelve 12
13～19 3～9+重读teen结尾 特殊: thirteen 13; fifteen 15; eighteen 18
一般: fourteen 14; sixteen 16
20～90整十位数 以ty结尾 twenty 20; thirty 30; forty 40; fifty 50; sixty 60; seventy 70; eighty 80; ninety 90
两位数 (几十几) 整十位数-个位数 twenty-one 21; thirty-five 35; ninety-eight 98
【巧学妙记】 基数词记忆规则
基数词太难记，找出规律就容易；零至十二无规律，一个一个单独记。
后加 -teen为十几，thirteen，fifteen看仔细， eighteen 只有一个 t ；
-ty是几十的标记， twenty 却是很奇怪， forty本身也不乖，跟着也把规则坏，thirty，fifty更厉害，和 eighty 一起搞例外；
十位后面是个位，表示数字“几十几”，连字符号莫丢弃，要表“几百几十几”， and常把百、十系。
还有一项须注意，“几百”后别把-s立；巧学妙记加练习，hundred 就是你成绩。
2.基数词的用法
基数词只能修饰可数名词, 要注意
数词和名词在数上要保持一致。
two cups 两个杯子
twenty apples 二十个苹果
(2) 表示编号时, 用“事物+基数词”。
例如: Class Four 四班　　
Room 302　302房间
(3) 表示年龄。
He is forty years old. 他四十岁了。
(4) 表示时刻。
5: 34读作 five thirty-four
9: 28读作 nine twenty-eight
T-shirt, hat
trousers, skirt
sweater, socks
shorts, shoes
jacket, bag
Make sentences in the chart with the words in the three boxes.
3a
yellow, green
purple, blue
brown, red
white, black
How much is … How much are …
the yellow T-shirt
the
this
that
these
those
the purple hat
this green skirt
that red bag
that white skirt
the blue T-shirt
the brown socks
the red shoes
these blue shorts
those purple socks
the black shorts
3b
1. How much is the hat _______________
2. How much is the bag _______________
3. How much is the T- shirt _____________
4. ______________________ They’re three dollars.
5. _______________________ It’s nine dollars.
6. ____________________ It’s eight dollars.
It’s five dollars.
It’s ten dollars.
It’s six dollars.
How much are the socks
How much is the sweater
How much is the skirt
Look at the pictures and write the
questions and answers.
3c
Student A, look at the pictures in 3b for a
minute and then close your book. Student
B, ask questions.
How much are the socks
Umm, they’re three dollars.
Ⅰ. 用所给词的适当形式填空。
1. My clothes 　　 (be) red and white.
2. These trousers are good. I’ll take 　　 (they).
3. How much 　 (be) the chicken
4. What color 　　 she 　　 (want)
5. I don’t know the two 　　　 (woman) .
are
them
is
does
want
women
Exercise
Ⅱ. 单项选择。
1. —Are those your shorts
—Yes, 　　　.
A. they are　B. that is　C. it is　D. I am
2. I want to buy 　　　 pants.
A. a B. this C. these D. that
3. —Can I help you
—　　　. I need a basketball.
A. No, thanks 　　　B. Yes, please
C. Yes, you can 　　 D. No, you can’t
4. The hat is nice, but it’s too 　 for me. I
like a small one.
A. small B. big 　C. dear D. cheap
5. —I’ll take this one. Thank you very much.
—　　　.
A. Here you are 　 B. You’re welcome
C. Thank you, too D. Not thanks